单项选择题

A．Employ them as lab assistants.
B．Teach classes at their high school.
C．Help them with their studies.
D．Pay them for participating in the study.
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单项选择题
A．They both feel sick.B．They grew tired of waiting.C．They didn’t like the program.D．They didn’t have a credit card.
A．They both feel sick.
B．They grew tired of waiting.
C．They didn’t like the program.
D．They didn’t have a credit card.
单项选择题
A．She hopes it will snow.B．She hopes it will rain.C．She hopes it won’t rain.D．She hopes it won’t snow.
A．She hopes it will snow.
B．She hopes it will rain.
C．She hopes it won’t rain.
D．She hopes it won’t snow.
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